diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-07-16 00:29:07 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-16 00:29:07 +0200 |
| commit | 82638844d9a8581bbf33201cc209a14876eca167 (patch) | |
| tree | 961d7f9360194421a71aa644a9d0c176a960ce49 /drivers/scsi/ch.c | |
| parent | 9982fbface82893e77d211fbabfbd229da6bdde6 (diff) | |
| parent | 63cf13b77ab785e87c867defa8545e6d4a989774 (diff) | |
Merge branch 'linus' into cpus4096
Conflicts:
arch/x86/xen/smp.c
kernel/sched_rt.c
net/iucv/iucv.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/scsi/ch.c')
| -rw-r--r-- | drivers/scsi/ch.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c index c4b938bc30d3..aa2011b64683 100644 --- a/drivers/scsi/ch.c +++ b/drivers/scsi/ch.c @@ -22,6 +22,7 @@ #include <linux/chio.h> /* here are all the ioctls */ #include <linux/mutex.h> #include <linux/idr.h> +#include <linux/smp_lock.h> #include <scsi/scsi.h> #include <scsi/scsi_cmnd.h> @@ -571,16 +572,19 @@ ch_open(struct inode *inode, struct file *file) scsi_changer *ch; int minor = iminor(inode); + lock_kernel(); spin_lock(&ch_index_lock); ch = idr_find(&ch_index_idr, minor); if (NULL == ch || scsi_device_get(ch->device)) { spin_unlock(&ch_index_lock); + unlock_kernel(); return -ENXIO; } spin_unlock(&ch_index_lock); file->private_data = ch; + unlock_kernel(); return 0; } |